It came from Scripture you need to take it up with St. Luke.
Mary as being blessed in found in the Holy Bible. The first instance is in Luke 1:28 when the angel Gabriel appeared to Mary to announce to her that she would be the mother of the Lord Jesus.
“And the angel being come in, said unto her: Hail, full of grace, the Lord is with thee: blessed art thou among women.” [Lk. 1:28]
The next instance is when Elizabeth was with the Holy Spirit, she stated that Mary was blessed.
“And she cried out with a loud voice, and said: Blessed art thou among women, and blessed is the fruit of thy womb.” [Lk. 1:42]
Then there is when Mary sang the Magnificat that is found in Luke 1:46-55.
“Because he hath regarded the humility of his handmaid; for behold from henceforth all generations shall call me blessed.” [Lk. 1:48]
Finally, there is another reference during the ministry of Jesus when a woman raised her voice in the crowd and said, “Blessed is the womb that bore you and the breasts that nursed you!”
“And it came to pass, as he spoke these things, a certain woman from the crowd, lifting up her voice, said to him: Blessed is the womb that bore thee, and the paps that gave thee suck.” [Lk. 11:27]
So are you a Scripture guy or not?
AMDG
Once again; no one ever claimed she wasn’t blessed.
Are you a bait-and-switch guy?